You've probably never heard of Edith González, unless you watch Telemundo serials or live in a town in the Southwest that gets Mexican TV.
And if you happen to be Mexican, then you have heard of her. :-)
She has been in more telenovela serials in Mexico that you can count. She made her debut at the age of five in the the 1970 serial Cosa juzgada, and she's been doing them ever since. Among her other serials are 1986's Monte calvario, 1990's En carne propia, and 2009-2010 Camaleones, which ran in 2009 and 2010 and yielded an impressive 135 episodes in that short time.
Among her movies are 1988's Pero sigo siendo el rey, 1990's Fabricantes de pánico, and 1996's Salón México La Jaibitaanción. Her earliest cinematic role, however, was not a Mexican one but an English one; in 1974 she played Fanny, the sister of Ebenezer Scrooge, as a child in a Spanish-language adaptation of Charles Dickens's A Christmas Carol.